Fuel for internal-combustion engines.



.eEoeGE B. SELDEN,OF ROCHESTER, NEW YOR K EUE Eon INTERNAL-QOMIBUSTION fimemns.

Specification of Letters Patent.

Patented Jul 20, 1909.

Application filed December 7, 1903, Serial No. 18-1,088. I Renewed Kay 18, 1909. Serial No. 496,882.

To all whom it may concern:

Be it known that I, GEORGE B. SELDEN, a citizen of the United States, residing at Rochester, in the county of Monroe, in the State of New York, have invented an Imrovement in Fuel for Internal-Combustion ngines, of whichthefollowing is a specificatlon. g

My invention relates to im rovements in the composition of liquid fudls for internal combustlon engines,the' "said im rovements being fully described in the fol owing specification and the novel features thereof being specified in the claims annexed to the are dissolved in a suitable solvent, such as,

one of the alcohols, benzin, benzole, acetone, etc., and the solution mixed with the liquid fuel. The proportion of the material added to thefuelmayvarywithinconsiderablelimits, from onehalf of one er cent. to five per cent. or more,accor(li of the user, the amount of increased power he desires from his loaded fuel, the strength of the engine, and other circumstances, such as the solubilityof the loading compound in the solvent, or the liquid fuel employed. I have found by actual brake tests that two per cent. of plcrate of naphthalene, when, dissolved in the fuel, will increase the power oba tained in the engine, over that obtained in the same engine by plain or unloaded fuel, by more than 100 per cent. naphthalene or similar compound it is immaterial whether the solvent of the com pound-is slightly in excess and the mixture may be made either directly in the solvent or in the fuel. The loaded fuelthus produced 1s of a decided yellow color, which serves as a distinctive mark. This loaded fuel may be used in any of the ordinary types of,'e ines,

- the result being a greatly increased exp osive effect,

The exhaust does' not differ materially either in appearance 'orodor from the exng to the judgment In dissolving the haust when unloaded fuel is used, and'if desired it may be completely deodorizedby the addition of a small quantity of suitable peroxid or an ether. Peroxid of hydrogen, preferably in a non-aqueous solution, accomplishes this purpose of deodorization excelu ently. Only a small quantity is required, not more than one-half of one per cent. The

ethers, such as an oxalic ether, for example,

produce the same effect Underthe same circumstances, a peroxidand an ethcr may be used together with advantage.

I have found by experiment that a fuel thus loaded will greatly increase the-effectiveness of the engine, and that a less amount of fuel is required than if it is used with no addition thereto. not increased, as the increased effectiveness 'of the loaded fuel pays the cost of the load.

Furthermore, the addition to "the fuel'pergravity, thus reducing the expense. other advantage is that just ashigh pressures can be obtained in the engine cylinder with The expense, therefore, is

'mits the use of a fuel of heavier speriific less compression,whichthereby reduces the resistance of the engine.

' The roperty of producing the increase of power escribed is practicall inherent in the picrate compounds of the ydrocarbons of the condensed benzin nuclei type, such as naphthalene C H phenanthrene, C H fluoranthene, C H pyrene, C H chrysene, C, ,H,,; and plcene C H I claim: 1. The herein described improved fuel for internal combustion engines, consisting of a a suitable liquid hydrocarbon containing pic-' rate of naphthalene, substantially as described.

2. The' herein describedfue-l for internal combustion engines, consisting of a suitable liquid hydrocarbon containing a picrate of a suitable hydrocarbon, substantially as described.

3. The combination with-a suitable liquid hydrocarbon,- of piorate of naphthalene and a suitable peroxid, substantially as described.

4. The combination with'a suitable liquid hydrocarbon, of picrate of naphthalene and peroxid of hydrogen, substantially as described.

' GEO. B. SELDEN.

Witnesses: I

H. R. SELDEN, O. T. Woonnunn. 

